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Roasted Cauliflower Recipe – Vegan Keto

Editorial note. This is a restrictive eating pattern that is not appropriate for everyone. Do not follow it if you are pregnant or breastfeeding, under 18, have a history of eating disorders, are underweight, or take medication for blood sugar, blood pressure, or thyroid function without first speaking with your clinician. Medically reviewed by Franco Cuevas, MD.

Vegan Keto Roasted Cauliflower (210 Calories, 5g Net Carbs, 7g Protein)

A whole head of roasted cauliflower comes in at 210 calories per serving with 5 grams of net carbs, 7 grams of protein, 6 grams of fiber, and 15 grams of healthy fat from olive oil and tahini. This is a rare recipe that satisfies both vegan and keto eaters at the same table. Serve it as a showstopper main for a plant-based dinner party, as a hearty side for grilled protein, or halved for a filling weekday lunch. Cut it at the table for the visual impact; slicing releases a burst of roasted garlic and thyme steam.

What Makes This Recipe Work

Two temperatures. Steam-blanch the whole head first for 5 minutes over boiling water so the inside cooks through before the outside burns. Then roast at 450 F for 35 to 40 minutes in a cast-iron skillet or heavy roasting pan. That high heat drives off surface water and triggers Maillard browning, which is the golden crust you see and the deep umami you taste. Brush olive oil generously between the florets, not just on top, so the interior gets seasoned. A finishing drizzle of tahini adds 3 grams of protein per tablespoon and a nutty richness that reads almost buttery. Fresh lemon juice at the end cuts the fat and wakes up the cumin and smoked paprika. Total hands-on time is 15 minutes; the oven does everything else.

Roasted Cauliflower Keto

Roasted Cauliflower Recipe

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Yield: 1

Keto Roasted Cauliflower Recipe

Keto Roasted Cauliflower
4.0 Stars (1 Review)

We've done the testing and swapped out ingredients to present you with the yummiest and healthiest roasted cauliflower recipe.

Along with it, we offer a few tips and simple methods to bring this delightful dish to our dinner tables. There's no room for error here, and you'll see why once you try making it at home.

Prep Time 15 minutes
Cook Time 1 hour
Total Time 1 hour 15 minutes

Ingredients

  • 2 cups cherry tomatoes
  • 5 garlic cloves (peeled and thinly sliced)
  • 4 tbsp. extra-virgin olive oil
  • 1/2 tsp. kosher salt
  • 1/4 tsp. ground black pepper
  • 1/2 tsp. crushed red pepper flakes
  • 1 head of cauliflower – medium size
  • 1/4 tsp. smoked paprika
  • Small bunch of chopped fresh flat-leaf parsley

Instructions

  1. Start by preheating your oven to 400°F.
  2. In a large baking dish, combine cherry tomatoes and fresh garlic.
  3. Drizzle with 3 tablespoons of virgin olive oil and half of the kosher salt, ground black pepper, and red pepper flakes.
  4. Toss everything together to ensure even coating.
  5. Now, let's prepare the cauliflower!
  6. Remove the large green leaves from the cauliflower and discard them.
  7. Cut the stem so the cauliflower sits flat on the baking tray.
  8. Push the tomato and garlic mixture to the sides and place the cauliflower in the center of the baking dish.
  9. Drizzle the remaining virgin olive oil over the cauliflower and rub it in using your hands or a cooking brush.
  10. Sprinkle with smoked paprika and the remaining kosher salt, then transfer to the preheated oven. Bake for about an hour or until tender.
  11. Remove the roasted cauliflower from the oven and sprinkle parsley over it.
  12. To serve, slice the cauliflower into 4 servings or wedges and serve with the tomatoes and garlic on the side. Voilà… Enjoy!
  13. Store any leftovers in an airtight container and consume within 3 days.
  14. For meal planning, you can bake and freeze the roasted cauliflower immediately after cooling. It will last for 1 month in the freezer. When ready to reheat, use the oven or microwave for best results.
  15. Sprinkle a bit more fresh parsley before serving for that freshly made WOW factor. Voilà!

Notes

It's best to use the middle rack when baking the cauliflower to ensure even cooking. To check for tenderness, insert a knife or fork into the cauliflower; if it goes through easily, then it is done!

Nutrition Information

Yield

4

Serving Size

1

Amount Per Serving Calories 172Total Fat 14gSaturated Fat 2gTrans Fat 0gUnsaturated Fat 12gCholesterol 0mgSodium 184mgCarbohydrates 10gFiber 4gSugar 5gProtein 4g

The nutritional information provided is an estimate based on the ingredients and cooking methods used in this recipe. Actual nutritional content may vary depending on the brands of ingredients and portion sizes. Please consult a registered dietitian or nutritionist for precise dietary advice.

Ingredient Notes

Pick a tight, heavy head of cauliflower with no brown spots. Two to two-and-a-half pounds is ideal for serving 4. Extra-virgin olive oil is the foundation here; use a good peppery one because you will taste it. Runny tahini works better than the thick paste-style; if yours is stiff, thin it with a tablespoon of water and lemon juice. Smoked paprika is worth the shelf space and brings a bacon-adjacent flavor without any animal product. Za’atar or sumac added in the last 5 minutes brings Middle Eastern brightness. Fresh garlic slivers pushed between the florets roast into golden nuggets that read like candy.

Tips and Variations

For meal prep, roast two heads at once and refrigerate the second for salads and grain bowls all week. For a lower-sodium version, salt sparingly and finish with lemon zest and fresh herbs. Push protein to 15 grams by topping with quarter cup of hemp seeds and 2 tablespoons of nutritional yeast, both of which are keto-friendly and vegan. For a non-vegan variation, drizzle with 2 tablespoons of Greek yogurt and 1 tablespoon of pomegranate seeds. Add a shower of chopped parsley, mint, and pistachios for a Middle Eastern-style presentation. To turn it into a full meal, serve over a bed of arugula with a can of drained chickpeas or crumbled feta on the side. For a spicy version, add a teaspoon of harissa to the oil brush. Cut into “steaks” 1 inch thick and roast on a sheet pan for a faster 25-minute variation.

Storage and Meal Prep

Store leftovers in an airtight container in the fridge for up to 4 days. It does not freeze well; the texture goes mushy on thaw. Reheat in a 400 F oven for 8 minutes to bring back the crust; the microwave will steam it soft. Pack florets into meal-prep containers with a portion of hummus or baba ganoush and a fresh cucumber-tomato salad for a Mediterranean bowl.

Current Version
August 8, 2026
Edited By
Damla Sengul
August 1, 2026
Edited By
Damla Sengul
Medically Reviewed By
Franco Cuevas, MD
  1. Harvard T.H. Chan School of Public Health. Diet Review: Ketogenic Diet for Weight Loss. Source
  2. Mayo Clinic. Is the keto diet safe? What are the risks? Source
  3. Cleveland Clinic. What is the keto diet? Source
  4. Bueno NB, et al. Very-low-carbohydrate ketogenic diet v. low-fat diet for long-term weight loss: meta-analysis. Br J Nutr. 2013. Source
  5. USDA FoodData Central. Source
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